Harrow



(No-Model.) 2 Sheets-Sheet 2.' S. ROTHGHILD.

. HARROW. No. 408,930. Patented Aug. 13, 1889.

WITNESSES: I

ATTORNEYS.

N. PETER& Phoiuulhogmphnn Walhillgiun, D4 [2 UNITED STATES I PATENTOFFICE.

SAMUEL ROTHOHILD, OF PENDLETON, OREGON.

HARRow.

SPECIFICATION forming part of Letters Patent No. 408,930, dated August13, 1889. Application filed November 27, 1888. Serial No. 292,036. (Nomodel.)

To all whom it may concern:

Be it known that I, SAMUEL ROTHCHILD, of Pendleton, in the county ofUmatilla an d State of Oregon, have invented a new and useful Harrow, ofwhich the following is a specification,

My invention is an improvement in harrows of the class which have fixedor stationary teeth and teeth which revolve; and the invention consistsin certain novel constructions and combinations of parts, as will behereinafter described and claimed.

In the drawings, Figure 1 is a plan view of the harrow with the wheelsin place. Fig. 2 is a detail view illustrating the manner of securingthe fixed teeth in position. Fig. 3 is a detail View illustrating theconstruction of the hub of the wheel and the manner of securing theteeth therein. Fig.4. is a detail View illustrating the protector andthe manner of securing the same on the teeth of the wheel. Fig. 5 is adetail view of the wheel, and Fig. 6 is a view of a somewhat differentform of harrow-frame from that shown in Fig. 1.

111 the construction shown in Fig. 1 an outer frame-bar A is bentcentrally between its ends at a, to form a loop for connection ofthehook or otlfer draft-attaching device, and between the rear ends ofsaid bar A the rear cross-bar A extends, such bars A A forming the outerpart of the frame. WVithin the bars A A, I support the wheel-frames B BB and B B also the bars Z) and 6 which extend, respectively, between theframes B and B and the tooth-supporting bars 0 O, formed of angleironllTwo of these bars C are arranged at and secured to the rear ends of eachof the wheel-tram es and form braces for such wheelframes, as shown. Nowit will be seen that I secure the front ends of the wheel frames to thebar A, and so unite all the said frames and brace them at such end, andalso provide braces for the rear end of said frames, resulting in thesecuring of such parts firmly and rigidly in position. I also, by meansof bars A A, inclose the revolving teeth and the fixed teeth, as clearlyshown.

It will be seen that the bars 0 at the rear ends of the wheel-framesdiverge or flare outwardly in such manner as to allow the rotating teethto pass up, even if encumbered with brush or other rubbish. At one sideof the path of the teeth of the wheel, as said teeth pass upward, Iprovide a rod D, which tends to slip the rubbish oif the teeth, as willbe understood from Fig. 1. The wheels E, as shown, are supported inbearings 19 at about the rear ends of their wheel-frames, and are constructed as more fully described hereinafter.

The fixed teeth F are passed through openings 1 in the horizontal flange2 of bars O, and secured against the vertical flange 3 by staples 4,embracing teeth F, passed through flange 3, and secured by nuts, asshown, or by keys or other suitable expedients. This forms a simple andconvenient fastening, and the horizontal flange of bars 0 aids inbracing the stationary teeth in position.

The wheel comprises the hub G, having a body part g, formed with acentral opening to receive the axle G, and a set-screw g, by which tosecure the hub on said axle. This body part g has in one side radialgrooves or chambers h, which receive the teeth II, and at the inner endsof grooves 71, Iprovide a receptacle K for the heads or projections H onthe teeth; such receptacle being preferably provided by an annulargroove h. NVhen the teeth H have been properly fitted in the grooves hand receptacle h, I place a plate or ring H against such spokes andagainst the annular portion of the hub provided with the grooves h, andsecure such plate H in position, thus holding the teeth firmly in place.By making grooves h not quite so deep as the teeth are thick thetightening of plates H may be caused to clamp the teeth more firmly.

The protector for the outer pointed ends of the teeth consists of tireI, a ring J, and fastenings, preferably staples and pins, as shown.

The tire I is made of angle-iron, having a radial flange t' and acylindrical flange 'i. A staple L has its arms held loosely in theflange 2', so it may be turned up, as indicated in dotted lines, Fig.4.The ring J fits in between the flange t" and the staple L, and againstthe pointed end of the tooth, a pin L being passed through flange 2",either outside of or through ring J, and connected with the staple, thussecuring the staple and the ring J in posit-ion, as will be understoodfrom Fig. 4. y

In applying the protector the wheel may be removed from the framebyloosening the setscrew and set into the tire, the latter beingpreviously laid fiat on the ground and the staples turned up, as indotted lines, Fig. 4. The staples may then be turned down to fulllineposition, the ring J be slipped in between the staples and the flange i,and the pin L be applied. The protector will then be properly connectedwith the teeth. By preference the inner edge of ring J is beveled orinclined at j to correspond with the inclination of the points of theteeth.

It will be understood that I do not wish in the broad features of theinvention to be confined to the particular grouping of the parts shownin Fig. 1, as it will be understood that such arrangementmay be varied,and where effective work is more of an object than lightness of draftthe parts may hoax-ranged as shown in Fig. 6, which would provide awheel between every two rigid teeth. The width might be extendedindefinitely to suit the purpose.

In order to guard the wheels and protect from injury any one who mayaccidentally fall on the harrow, I prefer to provide guard-arches M,fitted over the wheels and bolted at their ends to the framing, sucharches having depending edge flanges m, as shown.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the barA, the wheelframes connected at theirforward ends with the bar A, and the tooth-carrying bars 0, secured tothe rear ends of the wheel-frames and forming braces therefor,substantially as set forth.

2. In a harrow, the combination, substantially as described, of an outerframe bar or bars, the wheel-frames arranged Within said frame bar orbars and suitably secured, brace-bars extended between the forwardwhee1-frames and those in rear thereof and between the rear wheel-framesand the frame bars, and the wheels in said wheel-frames, allsubstantially asand for the purposes specified.

3. In a harrow, substantially as described, the combination of thewheel-frames and bars connected with and diverging from the open rearends of said frames, whereby to present no obstruction to the upwardmovement of the teeth when clogged by rubbish, &c., substantially as setforth.

4. The improved protector for the toothed wheels, consisting of the tireI, of angle-iron, the ring J, and fasteuings, substantially as setforth.

5. The combination, with the wheel having its teeth pointed, of theangle-iron tire I, the ring J, having inclined or beveled face 7', thestaples L, and the pins L,all substantially as set forth.

SAMUEL ROTIICI-IILD.

\Vitnesses:

THOS. R. HOPPER, B. HOPPER.

